SELECT 
  data 
FROM 
  cscart_order_data 
WHERE 
  order_id = 453 
  AND type = 'T'

Query time 0.00042

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}